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Polysilicon Powder - MEMC Electronic Materials, Inc.

Polysilicon Powder - MEMC Electronic Materials, Inc.

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<strong>Polysilicon</strong> <strong>Powder</strong>In an emergency, call CHEMTREC at 800-424-9300 or <strong>MEMC</strong> Pasadena at 713-740-1501SECTION 1: CHEMICAL PRODUCT AND COMPANY IDENTIFICATIONProduct Name:Chemical Name:Chemical Formula:Synonyms:Company Name:<strong>Polysilicon</strong> <strong>Powder</strong>SiliconSiSilicon, <strong>Polysilicon</strong>, P <strong>Powder</strong><strong>MEMC</strong> Pasadena3000 N. South StreetPasadena, Texas 77503713-740-1501SECTION 2: COMPOSITION & INFORMATION ON INGREDIENTSSubstance Name Contents CAS No. OSHA PEL ACGIH TLVSilicon 100% 7440-21-3 15 mg/m 3 (total dust)5 mg/m 3 (respirabledust)Not establishedSECTION 3: HAZARDS IDENTIFICATIONNFPA 704 Rating:Health Effects or RisksFrom Exposure:Health 1, Fire 0, Reactivity 1, Special NoneDust can be readily ignited.Expected to be irritating to the eyes and respiratory tract.Revised April 2010 1 of 5


<strong>Polysilicon</strong> <strong>Powder</strong>SECTION 4: FIRST AID MEASURESInhalation:Remove to fresh air. If breathing is difficult, give oxygenand seek medical attention.Eye Contact: Flush with copious amounts of water for at least 15minutes. If irritation persists, seek medical attention.Skin Contact:Ingestion::Remove contaminated clothing. Wash affected area withsoap and water. Rinse thoroughly. If irritation persists orother symptoms are observed, seek medical advice.Rinse out mouth and drink copious amounts of water. <strong>Inc</strong>ase of irritation or other symptoms, seek medicalattention.SECTION 5: FIRE FIGHTING MEASURESFlammability Classification(Per 49 CFR Part 173 Subpart D):Known or Anticipated HazardousProducts of Combustion:Extinguishing Media:Fire Fighting Instructions:Material is not flammable according to definition of aflammable solid in 49 CFR, Part 173, Subpart D.None listedDry chemical or carbon dioxide. In general, water basedextinguishing media should not be used for this materialUse firefighting measures which suit the environment andtake into account other materials which may be involved.Wear self-contained breathing apparatus and protectiveclothing.SECTION 6: ACCIDENTAL RELEASE MEASURESPersonnel Protection:Environmental Protection:Cleanup/Collection:Wear protective equipment including rubber gloves andeye protection. Ensure adequate ventilation. Keepunprotected personnel away.Take precautions to ensure material does not contaminatethe ground or enter the drainage system.Ensure adequate ventilation. Avoid raising dust. Transfermaterial to sealed containers for disposal.Revised April 2010 2 of 5


<strong>Polysilicon</strong> <strong>Powder</strong>SECTION 7: HANDLING AND STORAGEHandling:Storage:Avoid contact with eyes, skin and clothing. Avoidgeneration of dust. Keep containers tightly sealed.Store in a cool, dry location away from heat, sparks, andopen flame. Do not store with oxidizing agents, halogensor acids.SECTION 8: EXPOSURE CONTROL/PERSONAL PROTECTIONVentilation and Engineering Controls::Respiratory Protection::Eye Protection:Hand Protection:Body Protection:General Hygiene Measures:Material transfer and dust collection equipment shouldbe constructed of conductive materials and electricallyinterconnected (bonded) and grounded. Use generalor local exhaust ventilation if necessary.Wear NIOSH (U.S.) or CEN (EU) approved dustrespirator.Splash goggles or safety glasses.Not required.Use body protection appropriate for task. An apron orother impermeable body protection is suggested.Keep away from foodstuffs, beverages and feed.Remove all soiled/contaminated clothing immediately.Wash hands before breaks and at the end of work.Avoid contact with eyes and skin.SECTION 9: PHYSICAL AND CHEMICAL PROPERTIESAppearanceDark grey to black powderOdor:OdorlessPhysical state at atmospheric conditions: SolidpH:Not applicableSublimation Temperature (at 1 atm): Not determinedSolubility in Water:InsolubleMelting Point: 1410° C (2750° F)Boiling Point: 2355° C (4271° F)Specific gravity/Density: 2.39 g/cm 3 at 20° C (68° F)Molecular Weight:28.09 AMUFlammability:Dust clouds may be explosiveFlash Point:Not applicableFlammability Limits in Air:Not applicableAuto Ignition Temperature: 754° C (1390° F)Revised April 2010 3 of 5


<strong>Polysilicon</strong> <strong>Powder</strong>SECTION 10: STABILITY AND REACTIVITYChemical Stability:Conditions to Avoid:<strong>Inc</strong>ompatibility with Other <strong>Materials</strong>:Hazardous Decomposition, ReactionAnd Oxidation (other than burning)Products:Hazardous Polymerization:StableAvoid generation of airborne dusts. When heated,silicon will react with water to produce flammableand/or explosive hydrogen gas.Water, alkali metals, oxidizing agents, acids, basis,interhalogens, halogens.Not knownWill not occur.SECTION 11: TOXICOLOGICAL INFORMATIONRTECS Number:Acute Toxicity:Chronic and Subchronic Data:Special Studies:Suspected cancer agent:Irritancy of product:Sensitization of product:Reproductive toxicityinformation:Mutagenicity:Embryotoxicity:Teratogenicity:Reproductive Toxicity:VW0400000 (Silicon)Oral, LD50, 3160 mg/kg, ratElementary silicon is an inert material that seems to have littleadverse effect on lungs and does not appear to producesignificant organic disease or toxic effects when exposures arekept under reasonable control.None known to <strong>MEMC</strong> Pasadena, <strong>Inc</strong>.Silicon is not found on the following lists: FEDERAL OSHA ZLIST, IARC, NTP, and California and therefore is neitherconsidered to be nor suspected to be a cancer-causing agent bythese agencies.Silicon is irritating to respiratory system.Silicon is not known to be a sensitizer to humans uponprolonged or repeated contact.Listed below is information concerning the effects of Silicon onthe human reproductive system.No human mutagenic effects have been described for Silicon.No human embryotoxic effects have been described for Silicon.No human teratogenic effects have been described for Silicon.No human reproductive effects have been described for Silicon.Revised April 2010 4 of 5


<strong>Polysilicon</strong> <strong>Powder</strong>SECTION 12: ECOLOGICAL INFORMATIONEcological Effects:Take care to prevent material from entering the ground, watercourses or drainage systems.SECTION 13: DISPOSAL CONSIDERATIONSConsult local, state or national regulations to endure proper disposal.SECTION 14: TRANSPORTATION INFORMATIONThis material is considered as non-hazardous and non-regulated as defined by 49 CFR 172 101.SECTION 15: REGULATORY INFORMATIONADDITIONAL U.S. REGULATIONS:U.S. Sara Reporting Requirements: Silicon is subject to the reporting requirements of Sections 302,304, and 313 of Title III of the Superfund Amendments and Reauthorization Act, as follows:CHEMICAL NAME SARA 302 SARA 304 SARA 313(40 CFR 355, Appendix A) (40 CFR Table 302.4) (40 CFR 372.65)Silicon No No NoU.S. SARA Threshold Planning Quantity: Not applicable.U.S. CERCLA Reportable Quantity (RQ): Not applicable.U.S. TSCA Inventory Status: Silicon is listed on the TSCA Inventory.Other U.S. Federal Regulations: Silicon is not subject to the reporting requirements of CFR 291910.1000.California Safe Drinking Water and Toxic Enforcement Act (Proposition 65): Silicon is not on theCalifornia Proposition 65 list.Pennsylvania Right-to-Know: Silicon – YesNew Jersey Right to Know: Silicon – YesCanadian Regulatory Information: This product has been classified in accordance with the hazardcriteria of the CPR, and the MSDS contains all the information required by the CPR.DSL – Yes, NDSL – NoE.U. Risk Phrases: R36/37 Irritating to eyes and respiratory system.S39Wear eye/face protection.SECTION 16: OTHER INFORMATIONDisclaimer<strong>MEMC</strong> Pasadena, <strong>Inc</strong>. cannot guarantee that these are the only hazards that exist. Users are solelyresponsible for the safe storage, handling, use and disposal of this material, and for compliance withthe applicable laws, regulations and accepted practices. <strong>MEMC</strong> Pasadena, <strong>Inc</strong>. makes norepresentations or warranties; either expressed or implied, of merchantability, fitness for a particularpurpose, or any other nature.Revised April 2010 5 of 5

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